Wrench.



I it maag I No. 817,701. PATENTED APR. 10, 1906' W. H. PLOTO.

WRENCH.

APPLICATION FILED FEB. 23, 1905.

luuanfoz ill Z1030.

UNITED STATES PATENT @FFIQE.

WRENCH.

Specification of Letters Patent.

Patented April 10, 1906.

Applicatio fil d February 23,1905. Serial No. 246,999-

To all whom, it may concern:

Be it known that I, WILLIAM H. FLoTo, a citizen of the United States,residing at Meyersdale, in the county of Somerset and State ofPennsylvania, have invented new and useful Improvements in Vrenches, ofwhich the following is a specification.

This invention relates to wrenches.

The objects of the invention are to improve and simplify theconstruction of such devices; furthermore, to increase theirefficiencyin operation and to decrease the expense attending theirmanufacture.

With the foregoing and other objects in view, which will appear as thedescription proceeds, the invention resides in the novel combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed as a practical embodiment thereof.

In the accompanying drawings, forming a part of this specification,Figure 1 is a perspective view of a wrench constructed in accordancewith the invention. Fig. 2 is a longitudinal section. Fig. 3 is a rearelevation. Fig. 4 is a transverse section on the line 4 4 of Fig. 3.

Like reference numerals indicate corresponding parts in the severalviews.

The reference-numeral 1 indicates a shank which is formed with notches 2and is provided with a handle 3 of any suitable form and construction.Secured to the shank 1 is a fixed jaw 4, having the usual teeth orserrations.

The movable jaw5 is formed with apassage 6, through which the shank 1extends. The passage 6 is slightly wider than the shank 1, so as topermit the jaw 5 to move freely thereon, and said passage is so arrangedthat when the operating or meeting faces of the two jaws 4 and 5 are inparallel relation with each other the passage 6 is disposed at a slightangle with respect to the shank 1, as shown clearly in Fig. 2. By meansof this arran ement the jaw 5 is caused to move more easily upon theshank 1, and said jaw is also held more securely in parallel relationwith the j aw 4 when the wrench is in use.

' The operating-lever 7, which is adapted to be forced into parallelrelation with the shank 1 when it is desired to lock theaws in operativeposition, is provided with two curved or angularly-disposed arms 8 9,which are disposed on opposite sides of the shank 1. The arms 8 and 9are connected on the rear side of the shank 1 by a pin or bolt 10, whichis adapted to engage any one of the notches 2. Upon the side of theshank 1 opposite the pin 10 the arms 8 and 9 are connected by acrosspiece 11, which serves to prevent said arms from becomingdisengaged from the shank 1.

Pivotally mounted between the ends of the arms 8 and 9 is one end of alink 12, the opposite end of which is pivotally mounted between a pairof ears or lugs 13, formed upon the movable jaw 5.

The manner of using the improved Wrench will be apparent from theforegoing description in connection with the drawings.

- In its particular combination and arrangement of parts and in itsprecise details of construction the wrench of this invention constitutesan improvement over prior devices of a similar character.

Changes in the precise embodiment of invention illustrated .anddescribed may be made within the scope of the following claim withoutdeparting from the spirit of the invention or sacrificing any of itsadvantages.

Having thus described the invention, what is claimed as new is- A wrenchcomprising a shank formed on its rear edge with notches, a fixed jaw onthe shank, a movable j aw having a passage there- 'through adapted toreceive the shank, said passage being slightly wider than the shank andbeing so arranged as to lie at an angle with respect to the shank whenthe operatingfaces of the fixed and movable jaws are in parallelrelation with each other, a lever having angularly-disposed arms fittingaround the shank, a pin connecting the arms on the rear side of theshank and adapted to engage the notches, a cross-piece connecting thearms on the opposite side of the shank, and a link pivotally mountedbetween the arms and pivotally connected with the movable jaw,substantially as described.

In testimony whereof I aflix my signature in presence of two Witnesses.

WILLIAM H. FLOTO.

IVitnesses:

W. T. HOBLITZELL, F. B. BLACK.

